Compilare: user.c: In function ‘main’: user.c:82:21: warning: statement with no effect [-Wunused-value] for(i; i<=scm[t1][0]; i++) ^~~ user.c:91:21: warning: statement with no effect [-Wunused-value] for(j; j<=scm[t2][1]; j++) ^~~ user.c:101:21: warning: statement with no effect [-Wunused-value] for(i; i<=scm[t1][0]; i++) ^~~ user.c:112:17: warning: statement with no effect [-Wunused-value] for(i; i<=scm[t1][0]; i++) ^~~ user.c:121:17: warning: statement with no effect [-Wunused-value] for(j; j<=scm[t2][1]; j++) ^~~ user.c:131:13: warning: statement with no effect [-Wunused-value] for(i; i<n; i++) ^~~ user.c:136:13: warning: statement with no effect [-Wunused-value] for(j; j<m; j++) ^~~ user.c:32:5: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d",&n); ^~~~~~~~~~~~~~~~~~ user.c:35:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d",&v[i][0]); ^~~~~~~~~~~~~~~~~~~~~~~~ user.c:51:5: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d",&m); ^~~~~~~~~~~~~~~~~~ user.c:54:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d",&v[i][1]); ^~~~~~~~~~~~~~~~~~~~~~~~